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Finding the Fourth Proportional to 854,889.48, 1,179,712.62 and 492,327

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Solution

The fourth proportional to 854,889.48, 1,179,712.62 and 492,327 is: 679,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,889.48 : 1,179,712.62 = 492,327 : x
  2. Step 2: Convert to fraction form
    854,889.48/1,179,712.62 = 492,327/x
  3. Step 3: Cross multiply
    854,889.48x = 1,179,712.62 × 492,327
  4. Step 4: Simplify right side
    854,889.48x = 580,804,375,066.74
  5. Step 5: Solve for x
    x = 580,804,375,066.74/854,889.48
  6. Step 6: Final answer
    x = 679,391.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.